Ecell

[FrankieClarke2C]

How is Ecell calculated just by looking at the half reactions?

[Mahir_Hasan2C]

You would add the potential difference of the two half-reactions, keeping in mind that you may flip one-half reaction to cancel out the electrons.

[Edward Xie 2E]

E°_CELL = E°(Cathode) - E°(Anode)

[RachelCheung1A]

Ecell can be calculated by subtracting the reduction potential of the half reaction that is oxidized from the reduction potential of the half reaction that is reduced.

[Jack Hewitt 2H]

Ecell is calculated by subtracting the reduction potential of the oxidized half reaction (Anode) from the reduction potential of the reduced half reaction (Cathode).

[Gillian Murphy 2C]

When you do that, make sure you don't negate the E value because that would change it into the standard oxidizing potential. Use the E values exactly as they are given

[Samantha Chang 2K]

Ecell=Ecathode-Eanode

[Karishma_1G]

You have to find the two half-reactions in the standard potentials table. Then you would use the formula E(cell) = E(cathode) - E(anode). The cathode is the site of reduction and the anode is the site of oxidation.

[sonalivij]

Remember, Ecell is different than the standard potential - Ecell is calculated using standard potentials, E knot

[Jeremiah Hutauruk]

add the potential difference of the two half-reactions

[Felicia1E]

As Dr. Lavelle stated in lecture, if you don't want to remember the equation of cathode - anode, just make sure you write the reduction half reaction and find the E°, then write the oxidation held reaction and find the E°, making sure that when you look at the standard reduction tables to find the flipped version of the oxidation reaction and change the sign of the E° value given in the table. Then add the two values together to find the E°cell. The units should be volts (V).

[Calvin Patel 2H]

Use the reduction potential of the Cathode and the Anode.

[Zubair Ahmed 1L]

in order to calculate the Ecell of a system, you must use the standard reduction potentials and the formula Ecell=cathode-anode.

[Cynthia Ulloa]

Use Ecell= Eº(cathode) - Eº(anode) and you might have to flip one of the equations. I believe the professor will provide us with the sheet that has the E values for each half reaction so you would just plug in accordingly.